linux-kernel - Re: ppc modprost warnings in 2.6.22-rc1

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Message-ID: <a781481a0705300758t5f16235al1f420f09472af780@mail.gmail.com>
Date:	Wed, 30 May 2007 20:28:54 +0530
From:	"Satyam Sharma" <satyam.sharma@...il.com>
To:	"Meelis Roos" <mroos@...ux.ee>
Cc:	"Sam Ravnborg" <sam@...nborg.org>,
	"Linux Kernel list" <linux-kernel@...r.kernel.org>
Subject: Re: ppc modprost warnings in 2.6.22-rc1

Hi Meelis,

On 5/30/07, Meelis Roos <mroos@...ux.ee> wrote:
> > > WARNING: arch/ppc/platforms/built-in.o - Section mismatch: reference to .init.text:Powerplus_Map_Non0 from .data between 'mot_info' (at offset 0x18) and 'Mesquite_pci_IRQ_map'
> > .....
> >
> > mot_info is only used by functions marked __init.
> > So why not mark it __init so it get discarded and we get rid of all those warnings?
>
> How do I mark a initialized struct __init? Adding __init or const __init in
> front of the declaration results in
>
>   CC      arch/ppc/platforms/prep_pci.o
> arch/ppc/platforms/prep_pci.c:806: error: mot_info causes a section type conflict

Data that is not accessed after initcalls are done (and hence can be
safely freed after kernel boot) must be marked __initdata.

Satyam
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